Detachable plastic suction mold insert

Abstract

The utility model relates to the technical field of plastic processing, and discloses a detachable plastic suction mold insert which comprises an insert plate, the top of the insert plate is fixedly connected with a positioning column, the bottom of the insert plate is fixedly connected with an installation column, the interior of the installation column is hollow, the bottom of the installation column is movably connected with a cylinder body in a penetrating mode, and the cylinder body is fixedly connected with the positioning column. The top of the cylinder body is fixedly connected with a lifting rod, and the top end of the lifting rod movably penetrates through the inner wall of the shell and extends upwards. According to the utility model, the positioning column on the insert plate can provide an accurate placement position for the mold, the relative position of the mold and the insert is ensured to be fixed, and in the fixing process, an operator only needs to tread the pedal and extrude the inclined block by using the extrusion disc, so that the inclined block drives the rubber ball to abut against the inner side of the mold; the elasticity and friction force of the rubber balls are utilized to increase the connection tightness between the mold and the insert panel, so that the mold is effectively prevented from shaking or displacing in the forming process, and the stable proceeding of the plastic uptake forming process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a detachable blister mold insert. Background Technology

[0002] Vacuum forming inserts are a component of vacuum forming molds. They are small parts placed inside the cavity of the vacuum forming mold, typically with a specific shape and function. During the vacuum forming process, the inserts interact with the plastic sheet, thus affecting the shape, structure, or properties of the final product.

[0003] Traditional vacuum forming molds require manual installation. Workers, relying on experience and simple measuring tools, manually place the mold on the machine's worktable, attempting to find the correct position. However, this process lacks precise positioning aids and depends entirely on manual operation, making it difficult to ensure the mold is always placed in the ideal, consistent position—like groping in the dark, only achieving a rough alignment. This contrasts sharply with modern detachable vacuum forming mold inserts, which utilize positioning pins on the inserts to provide accurate mold placement. After placement, workers must use numerous clamps to secure the mold, such as various types of screws, nuts, and pressure plates. They must insert each screw through the mold's mounting holes and the corresponding holes on the worktable, then tighten the nuts. During tightening, they must constantly observe for any shifting of the mold and adjust the tightening force and direction as needed.

[0004] In existing technologies, when a batch of products is completed and a new mold is needed to produce other specifications, the aforementioned arduous installation and disassembly process must be repeated, followed by carefully removing the old mold. Furthermore, these clamps often fail to ensure uniform force application to the mold, frequently resulting in uneven stress on the mold during subsequent vacuum forming. The entire process is time-consuming and labor-intensive, significantly impacting production efficiency. Therefore, a detachable vacuum forming mold insert is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a detachable blister mold insert, which aims to improve the problems of inaccurate mold installation and positioning and inconvenient mold replacement in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a detachable vacuum forming mold insert, comprising a plate, a positioning post fixedly connected to the top of the plate, an installation post fixedly connected to the bottom of the plate, the installation post being hollow inside, a cylinder being movably connected to the bottom of the installation post, a lifting rod fixedly connected to the top of the cylinder, the top of the lifting rod movably penetrating the inner wall of the outer shell and extending upward, an extrusion plate fixedly connected to the top of the lifting rod, the bottom edge of the extrusion plate being inclined, a wedge contacting the top of the plate, a wedge having an inclined surface at the top, an installation groove being formed at the bottom of the positioning post, a rectangular hole being formed in the groove wall of the installation groove, and the bottom inclined surface of the extrusion plate contacting the top inclined surface of the wedge.

[0007] As a further description of the above technical solution: a lifting assembly is provided on the inner side of the cylinder body, the lifting assembly includes an adjusting rod, the top end of the adjusting rod movably penetrates through the bottom of the cylinder body, and a threaded groove is formed on the surface of the adjusting rod.

[0008] As a further description of the above technical solution: the wall of the rectangular hole is provided with a sliding groove, and a slider is fixedly connected to the top of the inclined block. The slider contacts and slides with the groove wall.

[0009] As a further description of the above technical solution: a second spring is provided in the slide groove, one end of the second spring is fixedly connected to one side of the slider, and the other end of the second spring is in contact with and slidably connected to the groove wall of the slide groove.

[0010] As a further description of the above technical solution: a pedal is fixedly connected to the bottom end of the adjusting rod.

[0011] As a further description of the above technical solution: a rubber ball is embedded and fixedly connected to one side of the inclined block.

[0012] As a further description of the above technical solution: a limiting ring is fixedly sleeved on the outer wall of the cylinder body, the outer side of the limiting ring is in contact with the inner wall of the cylinder body, a No. 1 spring is sleeved on the surface of the cylinder body, the bottom end of the No. 1 spring is fixedly connected to the inner wall of the mounting column, and the top end of the No. 1 spring is fixedly connected to the bottom of the limiting ring.

[0013] As a further description of the above technical solution: an extension plate is fixedly connected to the outer wall of the panel, and a threaded hole is provided on the top of the extension plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the positioning pins on the insert plate can provide an accurate placement position for the mold, ensuring that the relative position of the mold and the insert is fixed. During the fixing process, the operator only needs to step on the pedal and use the extrusion plate to squeeze the inclined block, so that the inclined block drives the rubber ball to press against the inside of the mold. The elasticity and friction of the rubber ball increase the tightness of the connection between the mold and the insert plate, effectively preventing the mold from shaking or shifting during the molding process, and ensuring the stable progress of the vacuum forming process.

[0016] 2. In this utility model, the height of the pedal can be flexibly adjusted according to the needs of the operator through the lifting component, which further improves the comfort and convenience of operation, adapts to operators of different heights, and has strong versatility. Attached Figure Description

[0017] Figure 1 This is a front view of a detachable vacuum forming mold insert proposed in this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of an installation assembly for a detachable thermoforming mold insert proposed in this utility model;

[0019] Figure 3 This is a top view schematic diagram of the positioning post of a detachable vacuum forming mold insert proposed in this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of a positioning post for a detachable thermoforming mold insert proposed in this utility model.

[0021] Legend:

[0022] 1. Panel; 2. Extension plate; 3. Positioning post; 4. Mounting post; 5. Adjusting rod; 6. Bolt; 7. Pedal; 8. Cylinder body; 9. Spring No. 1; 11. Threaded groove; 12. Rubber ball; 13. Lifting rod; 14. Extrusion plate; 15. Mounting groove; 16. Rectangular hole; 17. Slide groove; 18. Inclined block; 19. Sliding block; 20. Spring No. 2; 21. Limiting ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 4This utility model provides an embodiment of a detachable vacuum forming mold insert, including an insert plate 1. An extension plate 2 is fixedly connected to the outer wall of the insert plate 1. A threaded hole is provided on the top of the extension plate 2. The extension plate 2 and the threaded hole facilitate the connection and installation of the insert plate 1 with the vacuum forming mold, allowing it to be firmly fixed in the mold and ensuring that the insert will not shift during subsequent production, thereby guaranteeing the molding quality of the product. A positioning post 3 is fixedly connected to the top of the insert plate 1. The positioning post 3 provides accurate positioning for the mold to be formed, ensuring that the mold can be accurately placed on the insert plate 1, fixing the relative position between the mold and the insert, which is beneficial for subsequent fixing and forming operations and improves the dimensional accuracy of the product. An installation post is fixedly connected to the bottom of the insert plate 1. 4. The mounting column 4 is hollow inside, and the cylinder 8 is movably connected to the bottom of the mounting column 4. The mounting column 4 provides space for the cylinder 8 to be installed and moved, allowing it to move up and down within the mounting column 4 to achieve related functions. The hollow design facilitates the connection and motion transmission of internal components, ensuring the compactness and coordination of the entire structure. A limiting ring 21 is fixedly fitted on the outer wall of the cylinder 8. The outer side of the limiting ring 21 contacts the inner wall of the cylinder 8. The main function of the limiting ring 21 is to limit the range of movement of the cylinder 8 within the mounting column 4, preventing excessive movement of the cylinder 8 that could cause structural damage or affect normal operation. This ensures that the cylinder 8 can only move up and down within a specified stroke, guaranteeing the stability and reliability of the entire device. A No. 1... Spring 9, the bottom end of spring 9 is fixedly connected to the inner wall of mounting post 4, and the top end of spring 9 is fixedly connected to the bottom of limiting ring 21. Spring 9 plays a reset role in the whole structure. When cylinder 8 moves downward, it is compressed by limiting ring 21 and stores elastic potential energy. When the external force disappears, spring 9 releases elastic potential energy, pushing cylinder 8 upward to reset, so that the whole device can quickly return to the initial state for the next operation. A lifting rod 13 is fixedly connected to the top of cylinder 8. The top end of lifting rod 13 moves through the inner wall of the outer shell and extends upward. Lifting rod 13 serves as a connecting part between cylinder 8 and extrusion plate 14, and can convert the up and down movement of cylinder 8 into the up and down movement of extrusion plate 14, thereby realizing The pressing operation of the inclined block 18, along with its movable connection through the inner wall of the outer shell, ensures that the lifting rod 13 can move smoothly up and down without being obstructed by the outer shell. A pressing disc 14 is fixedly connected to the top of the lifting rod 13. The bottom edge of the pressing disc 14 is sloped. This slope is designed to better cooperate with the slope of the inclined block 18. When the pressing disc 14 moves downward, its slope can more effectively press the inclined block 18, causing the inclined block 18 to displace horizontally, thereby fixing the mold. This sloped cooperation method can convert vertical force into horizontal force, improving force transmission efficiency and fixing effect. The top of the insert 1 contacts the inclined block 18, and a rubber ball 12 is embedded and fixedly connected to one side of the inclined block 18.When the inclined block 18 is squeezed by the extrusion plate 14, it moves horizontally, thereby moving the rubber ball 12. The rubber ball 12 has a certain elasticity and friction. After it abuts against the inner side of the mold, it can increase the friction and connection tightness between the mold and the insert 1, preventing the mold from shaking or shifting during the molding process, and ensuring the molding accuracy of the product. The top of the inclined block 18 is provided with an inclined surface.

[0025] Reference Figure 3 , Figure 4 The bottom of the positioning post 3 is provided with a mounting groove 15, and the groove wall of the mounting groove 15 is provided with a rectangular hole 16. The mounting groove 15 is used to accommodate the inclined block 18, so that the inclined block 18 can slide horizontally within the mounting groove 15. The rectangular hole 16 provides guidance and limit for the sliding of the inclined block 18, ensuring that the inclined block 18 can only move in a specified direction and range, thereby achieving accurate fixation of the mold. The bottom inclined surface of the extrusion plate 14 contacts the top inclined surface of the inclined block 18. The wall of the rectangular hole 16 is provided with a sliding groove 17. The top of the inclined block 18 is fixedly connected to a slider 19, which contacts and slides with the groove wall of the sliding groove 17. The contact and cooperation between the bottom inclined surface of the extrusion plate 14 and the top inclined surface of the inclined block 18 causes the extrusion plate 14 to move downward. The sliding block 18 can be pushed to move horizontally, and the sliding connection between the slider 19 and the groove 17 further ensures the smoothness and accuracy of the movement of the sliding block 18, preventing the sliding block 18 from deviating or shaking during the movement, thus improving the reliability of the entire fixing device. A second spring 20 is provided in the groove 17. One end of the second spring 20 is fixedly connected to one side of the slider 19, and the other end of the second spring 20 contacts and slides against the groove wall of the groove 17. When the sliding block 18 is squeezed and moves horizontally, the second spring 20 is compressed and stores elastic potential energy. When the squeezing force disappears, the second spring 20 releases the elastic potential energy and pushes the sliding block 18 back to the initial position, so that the entire fixing device can be quickly reset, which is convenient for the disassembly and replacement of the mold.

[0026] Reference Figure 1 , Figure 2 The cylinder body 8 has a lifting assembly inside, which includes an adjusting rod 5. The top of the adjusting rod 5 extends through the bottom of the cylinder body 8. The surface of the adjusting rod 5 has a threaded groove 11, and a bolt 6 is threaded into the groove 11. The bottom of the adjusting rod 5 is fixedly connected to a pedal 7. As the core component of the lifting assembly, the adjusting rod 5 controls the height of the pedal 7 through its telescopic movement within the cylinder body 8. The cooperation between the threaded groove 11 and the bolt 6 limits and fixes the adjusting rod 5, ensuring that the adjusting rod 5 remains stable after being adjusted to the appropriate position. The pedal 7 facilitates operation by the operator using their foot, improving the convenience and efficiency of operation.

[0027] Working principle: First, the insert 1 is placed in the vacuum forming mold. The insert 1 is installed through the extension plate 2 and the threaded hole. This installation method can quickly and accurately fix the insert 1 in the vacuum forming mold, providing a stable foundation for subsequent mold installation and forming operations, ensuring the smooth progress of the entire production process. Then, the bolt 6 is removed, and the bolt 6 is separated from the threaded groove 11, thereby releasing the limiting position of the adjusting rod 5 inside the cylinder 8. This step allows the adjusting rod 5 to extend and retract freely within the cylinder 8, so as to adjust the height of the pedal 7 according to the operator's needs, making it a suitable distance from the ground for different people. The high-level operator performs foot operation, improving the versatility and user-friendliness of the device. Bolt 6 is then threaded through cylinder 8 and into threaded groove 11, locking adjusting rod 5 to the inner wall of cylinder 8. The mold to be formed is then inverted onto positioning post 3. Inverting the mold onto positioning post 3 enables rapid and accurate mold positioning, ensuring a tight fit between the mold and insert plate 1. This provides favorable conditions for subsequent fixing and forming operations, improving product forming quality and dimensional accuracy. The bottom of the mold contacts the top of insert plate 1. The operator simply needs to press foot pedal 7 to activate the mold. The adjusting rod 5 moves downward on the inner wall of the cylinder 8, driving the cylinder 8, the push rod, and the extrusion plate 14 downward respectively. The outer wall of the cylinder 8 slides on the inner wall of the mounting column 4 through the limiting ring 21. The cylinder 8 compresses the first spring 9 through the limiting ring 21. At this time, the inclined surface at the bottom of the extrusion plate 14 compresses the inclined surface of the inclined block 18. The inclined block 18 slides on the inner wall of the rectangular hole 16. The inclined block 18 slides in the slide groove 17 through the slider 19 and compresses the second spring 20. The compression cooperation between the inclined surface of the extrusion plate 14 and the inclined surface of the inclined block 18 can convert the vertical force into the horizontal force, so that the inclined block 18 moves smoothly in the rectangular hole 16. The sliding connection between slider 19 and slide groove 17 further ensures the accuracy and stability of the movement of inclined block 18, while the compression of spring 20 provides power for the reset of inclined block 18. Rubber ball 12 follows the movement of inclined block 18 and is pressed against the inside of the mold, thereby positioning the mold on the top of panel 1 and achieving the effect of fixing the mold. The thermoplastic sheet or plate is installed on the mold. The heating of the material is conducted to soften the temperature by the heater. The air between the sheet and the mold is quickly extracted by the vacuum pump, allowing the material to be adsorbed on the surface of the mold. After cooling, the desired plastic product can be obtained by demolding.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable thermoforming mold insert, comprising an insert plate (1), characterized in that: A positioning post is fixedly connected to the top of the panel (1), and an installation post (4) is fixedly connected to the bottom of the panel (1). The installation post (4) is hollow inside. A cylinder (8) is movably connected to the bottom of the installation post (4). A lifting rod (13) is fixedly connected to the top of the cylinder (8). The top of the lifting rod (13) movably passes through the inner wall of the outer shell and extends upward. An extrusion plate (14) is fixedly connected to the top of the lifting rod (13). The bottom edge of the extrusion plate (14) is set with a slope. A wedge (18) is in contact with the top of the panel (1). A wedge is set on the top of the wedge (18). An installation groove (15) is opened at the bottom of the positioning post. A rectangular hole (16) is opened in the groove wall of the installation groove (15). The bottom slope of the extrusion plate (14) is in contact with the top slope of the wedge (18).

2. The detachable vacuum forming mold insert according to claim 1, characterized in that: The cylinder (8) is provided with a lifting assembly on its inner side. The lifting assembly includes an adjusting rod (5). The top end of the adjusting rod (5) moves through the bottom of the cylinder (8). The surface of the adjusting rod (5) is provided with a threaded groove (11).

3. A detachable thermoforming mold insert according to claim 1, characterized in that: The rectangular hole (16) has a groove (17) on its wall. The top of the inclined block (18) is fixedly connected to a slider (19). The slider (19) contacts and slides with the groove wall of the groove (17).

4. A detachable thermoforming mold insert according to claim 3, characterized in that: A second spring (20) is provided in the groove (17). One end of the second spring (20) is fixedly connected to one side of the slider (19), and the other end of the second spring (20) is in contact with and slidably connected to the groove wall of the groove (17).

5. A detachable thermoforming mold insert according to claim 2, characterized in that: The bottom end of the adjusting rod (5) is fixedly connected to a pedal (7).

6. A detachable thermoforming mold insert according to claim 1, characterized in that: A rubber ball (12) is embedded and fixedly connected to one side of the inclined block (18).

7. A detachable thermoforming mold insert according to claim 1, characterized in that: A limiting ring (21) is fixedly sleeved on the outer wall of the cylinder (8). The outer side of the limiting ring (21) is in contact with the inner wall of the cylinder (8). A first spring (9) is sleeved on the surface of the cylinder (8). The bottom end of the first spring (9) is fixedly connected to the inner wall of the mounting column (4). The top end of the first spring (9) is fixedly connected to the bottom of the limiting ring (21).

8. A detachable thermoforming mold insert according to claim 1, characterized in that: An extension plate (2) is fixedly connected to the outer wall of the panel (1), and a threaded hole is provided on the top of the extension plate (2).

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